Portal Single Player

Talk about the game, custom maps, how to get the achievements and beat the challenge maps, and anything related to Portal 1. Caution: Spoilers abound!

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Easter Egg - DEBUNKED (Spoilers!)
by msleeper · Oct 19, 2007
20 Replies · 10,008 Views
Last post by youme
Jan 27, 2008
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Valve should Balkanize the challenge map Achievements
by Crooked Paul · Oct 23, 2007
16 Replies · 7,921 Views
Last post by Hyakkidouran
Jan 24, 2008
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NEW BUG Discovery or whatever you want to call it(Glitch)!!
by sKoToSa · Jan 17, 2008
9 Replies · 3,754 Views
Last post by sKoToSa
Jan 17, 2008
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Bug discovered
by VolumetricSteve · Dec 17, 2007
5 Replies · 2,719 Views
Last post by DeviMon
Jan 09, 2008
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Portal bug how to transport items from chamber 16 to 17
by DeviMon · Jan 09, 2008
0 Replies · 1,666 Views
No replies
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screenshot from discord_23
by iamafractal · Jan 01, 2008
6 Replies · 3,172 Views
Last post by iamafractal
Jan 01, 2008
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Unlimited cubes Test Chamber 13
by krikkit · Dec 23, 2007
5 Replies · 3,231 Views
Last post by krikkit
Dec 23, 2007
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No Story by Theprogram00
by msleeper · Dec 17, 2007
4 Replies · 2,947 Views
Last post by msleeper
Dec 21, 2007
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Speed run 17:50 completion
by Kingpin · Dec 10, 2007
0 Replies · 1,855 Views
No replies
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VG Cats does it AGAIN!
by espen180 · Dec 08, 2007
3 Replies · 2,523 Views
Last post by Hober
Dec 08, 2007
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Challenge 17 with NO Portals
by DiddyKong42 · Oct 20, 2007
10 Replies · 5,950 Views
Last post by volt
Dec 08, 2007
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Collectors Edition
by espen180 · Oct 27, 2007
12 Replies · 6,338 Views
Last post by Wroth
Dec 05, 2007
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Glados killed with turret
by Omgee · Dec 02, 2007
7 Replies · 3,675 Views
Last post by Wroth
Dec 05, 2007
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SPOILERS Timeline for Portal?
by f0rkz · Oct 14, 2007
59 Replies · 24,345 Views
Last post by MrTwoVideoCards
Dec 01, 2007
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Creative thinking... (Spoiler)
by Robinson · Oct 15, 2007
34 Replies · 12,991 Views
Last post by MrTwoVideoCards
Dec 01, 2007
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fastest times
by mikebolt · Oct 20, 2007
14 Replies · 6,940 Views
Last post by Player1
Dec 01, 2007
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Aperture Discord/Test Chamber 23 by Korjagun
by MrTwoVideoCards · Nov 30, 2007
0 Replies · 2,377 Views
No replies
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Logic Portals -Chamber 00 to 03 by Hurricaaane
by MrTwoVideoCards · Nov 27, 2007
11 Replies · 7,426 Views
Last post by MrTwoVideoCards
Nov 29, 2007
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Final Boss Speed Run
by Wroth · Oct 31, 2007
11 Replies · 5,944 Views
Last post by Wroth
Nov 22, 2007
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Portal - Only 20 minutes long
by espen180 · Nov 11, 2007
2 Replies · 2,233 Views
Last post by Yusayoh
Nov 11, 2007